28016625

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{821}}^1$

素因数の和:859

約数の個数: 64

約数和(自身を含む): 57447936

約数和(自身を除く): 29431311

約数列:

[1, 3, 5, 7, 13, 15, 21, 25, 35, 39, 65, 75, 91, 105, 125, 175, 195, 273, 325, 375, 455, 525, 821, 875, 975, 1365, 1625, 2275, 2463, 2625, 4105, 4875, 5747, 6825, 10673, 11375, 12315, 17241, 20525, 28735, 32019, 34125, 53365, 61575, 74711, 86205, 102625, 143675, 160095, 224133, 266825, 307875, 373555, 431025, 718375, 800475, 1120665, 1334125, 1867775, 2155125, 4002375, 5603325, 9338875, 28016625]

約数ペア:

[(1, 28016625), (3, 9338875), (5, 5603325), (7, 4002375), (13, 2155125), (15, 1867775), (21, 1334125), (25, 1120665), (35, 800475), (39, 718375), (65, 431025), (75, 373555), (91, 307875), (105, 266825), (125, 224133), (175, 160095), (195, 143675), (273, 102625), (325, 86205), (375, 74711), (455, 61575), (525, 53365), (821, 34125), (875, 32019), (975, 28735), (1365, 20525), (1625, 17241), (2275, 12315), (2463, 11375), (2625, 10673), (4105, 6825), (4875, 5747)]